Forna de l'Os

Small cave with 41 metres of passage at the Llau de Cornàs (Serradell), hypothetically related to the cova Cuberes.

Conca de Dalt • Pallars Jussà 41m 7m

EspeleoWorld

Forna de l'Os

Small cave with 41 metres of passage at the Llau de Cornàs (Serradell), hypothetically related to the cova Cuberes.

Conca de Dalt · Pallars Jussà

Length: 41 m · Depth: 7 m

Updated record

https://espeleoworld.com/en/c/forna-de-l-os

Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.

Topographic map of the main entrance — Main entrance · ICGC topographic map

Small cave with 41 metres of passage at the Llau de Cornàs (Serradell), hypothetically related to the cova Cuberes.

Characteristics

Type: Cave
Municipality: Conca de Dalt
Region: Pallars Jussà
Unit: Serra de Lleràs
Length: 41 meters
Depth: 7 meters
Major Unit: Prepirineu
Lithology: Conglomerate
Updated on EspeleoÍndex: January 5, 2022

Location

From the entrance of the cova Cuberes, we will go up the Llau de Cornàs ravine until we reach an altitude of 1275 metres, approximately some 700 metres of passage from the cova Cuberes, where we will find the cave entrance a few metres above the streambed on its hydrographic left bank.

Entrances

Always verify coordinates and access conditions before setting out.

Os, Forna de L'
Elevation: 1270 m
42.284481, 0.867787
UTM 31T (ETRS89) 324200 4683564
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Topographic

Forna de l'Os - Topography, Conca de Dalt, Pallars Jussà

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Espeleoindex · CC BY-NC 4.0, https://creativecommons.org/licenses/by-nc/4.0/ · Image © its author.

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Photos

Forna de l'Os - Photo, Conca de Dalt, Pallars Jussà

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Description

Morphology

The Bauma-shaped entrance gives access to an ascending step that places us in a gallery running NW, at the end of which a tiny opening leads to the outside. Halfway along the gallery, we find a conduit running NE, which places us in a kind of chamber divided by blocks. The cave has 41 metres of passage and a positive height difference of +7 metres.

Speleothems

In the N part of the chamber divided by blocks we find some parietal formations.

Progression

Towards the SE a narrow gallery opens up that was cleared for a few metres until finally continuing was abandoned.

History

This small cave was explored on 20 May 1995 by the SIE del CE Àliga; at that time they named it “Coveta del Querant de l'Os”.

In 2001, once the new galleries found in the cova Cuberes were known, the SIE explored it again due to its proximity to the “Fractura Perversa” of the Cova Cuberes; during the exploration they carried out various clearings of narrow passages in the already known section to facilitate passage, as well as an important clearing at the final crawl that did not obtain positive results.

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Bibliography

Valles, J. De(2008).-”Alta Ribagorça, Pallars Jussà, Pallars Sobirà, Val d'Aran”. Catàleg Espeleològic de Catalunya (volum 1):156-157.

Dades inèdites de situació, descripció, topografia, fotografies i història han estat obtingudes dels arxius de la SIE del CE Àliga.
Coordenades actualitzades facilitades per Josep Guarro el gener de 2022